Did You Know?
converter boxes
Secretary Carlos M. Gutierrez today announced that, nine months away from the digital television transition for all full-power broadcasters, one million coupons have been used as part of the NTIA TV Converter Box Coupon Program. (Acrobat PDF 59 Kb) Posted 05-06-2008 • Request Coupons: call 1-888-388-2009 or go to www.dtv2009.gov • Application Form for Requesting Coupons by Mail or Fax (Acrobat PDF 2,275 Kb) • Sample TV Converter Box Coupon (Acrobat PDF 55 Kb) • Authorized Coupon Eligible Converter Boxes (CECB) • CECB Manufacturer Information • Retailer Information (www.ntiadtv.gov) • TV Converter Box Coupon Program Logo (Acrobat PDF 380 Kb) • Frequently-Asked Questions for Viewers of Translators and Low Power Stations • Listing of Class A, Translator, and Low Power Stations by State • DTV Program Materials (PSAs, posters, articles, etc.) Federal Register Notice of Proposed Rule Making: Changes to TV Converter Box Coupon Program Regarding Households: NTIA proposes certain changes affecting its Digital-To-Analog Converter Box Coupon Program rules such as waiving the \"eligible household\" application requirements for individuals residing in nursing homes or other senior care facilities. Comments must be submitted by 5 p.m. EST, no later than June 9, 2008. (Acrobat PDF 73Kb)
Checking an electrolytic capacitor without an ESR meter
If you don\'t have an ESR meter for checking an electrolytic capacitor, you can get a good idea of its condition using a capacitance meter and a can of freezer. Connect the component under test to the meter, preferably via crocodile clips. If the capacitance reading is significantly below the nominal value, you need go no further. If, however, the reading seems to be OK, spray the capacitor with the freezer and observe the capacitance reading. With a faulty item, you will see the reading decrease fairly rapidly. Continue to apply freezer until the value is approximately 75% of what it should be to confirm that it is definitely faulty. This method has worked well for me for many years.
Digital TV gets a step closer
Vouchers to help pay for conversion to hit the mail By Chris Emery | Sun reporter February 18, 2008 1 2 next Article tools E-mail Share With the switch to all-digital television exactly a year away, vouchers to defray the cost of converter boxes necessary to keep older sets working will begin hitting the mail this week - and officials are urging people to request them early, as they are going fast. The federal government is offering each family up to two $40 vouchers to purchase the boxes, which will translate digital broadcast signals so they can be viewed on analog TVs. But the number of requests for the vouchers has been higher than predicted, raising concerns that the $1.5 billion set aside by the government might not be enough to meet consumer demand. \"There is not an unlimited supply of [vouchers] out there,\" said Shermaze Ingram, a spokeswoman for the National Association of Broadcasters. \"If you really think you need one, go ahead and get one. The last thing people want to do is try to get the coupon in late February next year.\" Ingram emphasized that owners of TVs connected to cable, satellite or fiber-optic services do not need converters for those televisions, as their providers will continue transmitting analog signals. The nearly 21 million households that depend completely on over-the-air broadcasts, however, will need to take some action before Feb. 17, 2009, when most TV stations will cease to broadcast analog signals. Purchasing a digital television - HD or standard definition - will solve the problem. So, too, will switching to cable or satellite service. But the least expensive option is using the government-subsidized vouchers to purchase a converter box. People can apply for the vouchers by mail, fax, online or through a telephone help line set up by the National Telecommunications and Information Administration. The deadline for filing an application is March 31, 2009, and the agency will begin mailing the coupons to applicants this week. The vouchers are valid for 90 days. Since NTIA began allowing people to apply for the vouchers at the beginning of the year, they\'ve received nearly 5 million requests. During a congressional hearing on the preparations for the digital transition on Wednesday, NTIA officials said the initial demand was higher than expected. They also received a large number of calls from Spanish-speakers, prompting the agency to hire more translators. In his testimony at the hearing, David K. Rehr, the president and CEO of the National Association of Broadcasters, said he fears that the government could run out of vouchers. NAB spokeswoman Ingram, said the $1.5 billion currently set aside will cover about 33 million converter boxes. But about 38 million U.S. households have at least one set that uses an antenna to receive analog transmissions. Officials are also concerned that consumers will be caught unaware by the switch to digital or be confused about what steps they need to take. The government has allotted $20 million to fund campaigns to educate people, and Ingram said industry groups are ramping up their own outreach programs. They plan to reach consumers through TV commercials, speeches and appearances by trucks designed to look like televisions. But Joel Kelsey, a spokesman for Consumers Union, warned that current funding might not be enough - particularly to reach elderly and low-income viewers who will be most affected by the switch. \"It\'s my firm hope that the DTV transition will go swimmingly,\" he said. \"But we should be concerned that there are some consumers that are not being reached.\" A recent survey by Consumers Union found that three out of four households that would be affected by the change didn\'t know the converter box vouchers were available. Of the families surveyed, 42 percent said they had no plans to do anything to prepare for the change. \"Citizens and consumers didn\'t ask for the digital transition,\" Kelsey said. \"It\'s the job of the government to help them sort out some of the noise and understand the lowest-cost path.\" One point of confusion is the converter boxes themselves. EchoStar currently offers the cheapest box at $39.99, but boxes can cost upwards of $100. Some include extra features, such as built-in DVR for recording programs for later viewing, but simpler - and cheaper - boxes will do the job. A study released last week suggested consumers might want to beware when shopping for the boxes. The Maryland Public Interest Research Group found that sales clerks at retail chains were misleading broadcast viewers who were trying to prepare for the transition. About half of the clerks tried to \"up-sell\" consumers by directing them to more expensive products. The report found that many are confused by the digital transition and might end up buying expensive high-definition digital televisions, when all they need is a standard-definition digital set or a converter box. Most sets purchased before 2004 were analog TVs that cannot interpret over-the-air digital signals without a converter box. Newer sets may be capable of receiving digital broadcasts without a converter box. Experts said consumers should also be careful when shopping for antennas. While some companies are labeling their antennas as \"digital\" or \"HDTV,\" any antenna that can receive both VHF and UHF signals will work for receiving digital signals. Another concern raised by communications officials is that some converters won\'t be able to receive analog signals transmitted by so-called \"low-power\" stations, which will be allowed to continue broadcasting in analog after next February. They suggest consumers consider boxes that can pass analog signals through to the TV set. Boxes with this capability are noted on the list of converter boxes posted on the NTIA\'s Web site where consumers can apply for coupons. Even with a converter box, however, some viewers might find themselves without a picture. Unlike analog signals - which can be watched in varying degrees of clarity, digital signals are all or nothing. Some people who now receive a poor analog signal will receive a much clearer picture when they switch to digital, while others will see nothing but static. \"We refer to it as the \'cliff effect,\'\" said Kelly Williams, the senior director of engineering for the NAB. \"Your picture remains perfect until you slide off the cliff.\"
samsung new hd /blue ray dvd recorder
Samsung introduces BD-UP5000 Blu-Ray/HD DVD/DVD Combo player Jim Foster Editor/Assistant Manager – Training/Publications Samsung – the first company to introduce a Blu- Ray player, is proud to introduce its first Blu- Ray/HD DVD/DVD combo high definition player, the BD-UP5000. This player supports both HDDVD and Blu-Ray disc formats and their interactive technologies, Hdi and BD Java. These interactive technologies allow consumers to view additional movie content such as trailers, director’s comments, more elaborate interactive menus and behind the scenes footage via Internet connection. This player supports BD, HD DVD, DVD video, DVD-RW/-R (V mode and finalized only) discs and provides full HD 1080p playback. On Blu-Ray and HD DVD discs, two individual full HD video layers are available. One layer is assigned to video related graphics (such as subtitles), and the other layer is assigned to interactive elements, such as buttons or menus. Unlike a standard DVD, these menus can be accessed without stopping disc play. There are also Menu sounds available, when a menu option on a disc is selected, sounds can be heard such as button clicks or a voice-over explaining the highlighted menu choice. The BD-UP5000 allows consumers to view all HD movies available without the concern of competing formats and will help to encourage the adoption of Hi-Def in the marketplace. INSIDE TH IS ISSUE 1 Samsung
VIZIO AND SAMSUNG DO BATTLE FOR #1
News | Aug 27, 2007 Irvine’s Vizio Inc., a seller of flat-panel TVs, grabbed the No. 1 spot in its market in the second quarter in a coup that surprised industry watchers. Samsung introduces new LED backlight and 120hz LCD TVs Jim Foster Editor/Assistant Manager – Training/Publications Samsung has introduced two new LCD TVs, the LNT4071F/4671F/5271F and LNT4081F/4681F/5281F/5781F with advanced features that improve on an already excellent product. The LNT4071F/4671F/5271F has the Auto Motion Plus 120 Hz feature which removes drag from fast scenes with a lot of movement. The LNT 4081F/4681F/5281F/5781F has an LED based backlight system which replaces the Cold Cathode Fluorescent (CCF) tube with an LED array. The LED array allows individual sections of the screen to be controlled independently. Independent control allows Samsung to obtain contrast ratios of 500,000:1 compared to 7,000:1 in the CCF backlight system. Additionally, the replacement of the CCF backlight system with a silicon based product allows us to produce a more environmentally friendly design. Both models allow Detailed picture settings, which enable the customer to adjust the Black Level, Dynamic Contrast, Gamma (enables adjustment of the Primary Color (Red, Green Blue) Intensity), Color Space, White Balance, Edge enhancement and xvycc, which increases detail and color space when watching movies from an external device such as a DVD player. The addition of these new features is sure to keep Samsung at the forefront of LCD TV technology, and maintain our position as the industry leader.
BALLAST UPDATE (SAMSUNG)
Model: HLS**86WX/XAA, HLS**65WX/XAA, HLS**66WX/XAA, HLS**87WX/XAA, HLS**88WX/XAA, HLS**76SX/XAA Symptom: DLP TV immediate shutdown within a few minutes / Ballast PCB change. DLP TV shuts off within 3 MOST OF THESE SETS USE A BP96-01472A LAMP minutes because of defective ballast. Problem Range: March 2006 ~ Feb. 2007 production Cure: 1. Power on DLP TV. 2. Check whether TV shuts off or not within 3 minutes. 3. If TV shuts off in 3 minutes, replace both Ballast and Lamp. See note below. 4. If TV doesn\\\'t shut off but the picture is dark, replace the Lamp only. NOTE: The service parts code of the Ballast was changed from BP47-00033A to BP47-00037A in JAN,2007
hsl light tunnel quick fix
Tip for Aligning HLS**** Light Tunnel Tips to Speed up Light Tunnel Replacement and Adjustment Boris Mircev ASC Here are some tips to speed up light tunnel replacements and adjustments HLS series: To remove light tunnel assembly - Before removing light tunnel assembly, you should make a mark on screws and screw mounts in order to remember the screws’ original position. - Loosen both adjustment screws 3 turns (3 x 360 degrees) - When removing the old light tunnel, remove from it the double-sided yellow spacer felt and install on same side of the new light tunnel. - Before installing tunnel assembly in light engine you should use a little compressed air to remove pieces of loose glue from the old tunnel. - Reattach the back light tunnel assembly, tighten both adjustment screws 3 turns. - Most likely you will not need any adjustments. If adjustments are needed, see adjustments for HLR series below HLR series: - Loosen adjustment screws with a Philips screwdriver for 4.5 to 5 turns. Reinstall yellow spacer felt in same place. Tighten adjustment screws the same number of turns you used to loosen them. Most likely you will need adjustments. Do not install engine back. Place your work order on top of lens. When TV has white test pattern, precisely adjust light tunnel for a clean screen display.
Troubleshooting Plasma Display Panels
The symptom is no picture but the relay clicks when the power button is pressed. The above symptom can be caused by a defective Switch Mode Power Supply (SMPS), defective Y board or defective X board. The best way to get started is to verify the operation of the power supply. Specifically verify the Vscan, Vset, Vs and Ve. voltages. The exact voltage values are printed on the label on the back panel. The Vscan and Vset voltages are supplied to the Y board exclusively. The Ve Voltage is applied to the X board exclusively. The Vs voltage is applied to both the Y and X boards. If the Ve voltage is low or missing disconnect the power connector from the SMPS board to the X board. Turn on the unit and check the voltage level, if the voltage goes up the X board is probably defective and should be replaced. If the voltage does not go up the SMPS board is probably defective and needs to be replaced. The unloading technique can also be applied to the Vs, Vset or Vscan voltages applied to the Y board. However, certain PDP units require the load from the Y board to control the power supply. Removing the SMPS connection may cause the supply to shut down. If the SMPS shuts down do a visual inspection of the Y board. Observe at the transistors mounted on the heat sinks looking for cracking or scorch marks. Make sure the capacitors have no bulges at the top or sides. Also, make sure the green fusible resistors are not brown, indicating an over current condition. If the Y board shows any of the above conditions replace it. If a visual inspection yields no results unplug the unit and measure the resistance on the Y board from the Vscan pin to ground, Vset pin to ground and Vs pin to ground at the Y board. . A measurement of less than 500 ohms is an indication that there a short circuit on the board.
TROUBLESHOOTING DLP LIGHT ENGINES
Troubleshooting DLP Light Engines Jim Swift Manager – RTSC Light engines for DLP units have gone through many design changes making them easier to service. As these Televisions go out of warranty, it is not usually cost effective to replace an entire light engine. This article will discuss repairing light engines to the part or board level. A common DLP symptom is no function and all three front panel LEDs blinking. This symptom can be caused by four different items; 1. No Color Wheel Startup 2. Defective Lamp 3. Defective Ballast 4. Defective DMD Board 1. No Color Wheel Startup- The color wheel must start before any other operation in the DLP can commence. Press the power on button and listen for the color wheel to start spinning. If the color wheel does not start spinning it is probably defective. 2. Defective Lamp- Unfortunately there is no way to test the lamp so it must be tested by substituting a known good lamp. Defective lamps may not show any observable flaw, additionally there is no quick way to test a lamp with a multi-meter. 3. Defective Ballast- A properly operating ballast will emit a crackle sound at startup. The crackle sound is the spark gap firing. If the spark gap sound is not heard verify the ~300V supply voltage is present. Also verify Lamp enable signal is being sent from the DMD board. The Lamp enable signal is a 5V peak to peak square wave. If the Lamp Enable signal is missing the DMD board is suspected to be defective. If the Lamp enable and ballast supply voltage is present the ballast is suspected to be defective. 4. Defective DMD Board- Using a process of elimination, if items 1-3 are okay it has to be a defective DMD Board. Verifying the Lamp enable signal described in item 3 is another method of testing the DMD board.
LVDS LINES PINCHED OF SAMSUNG SETS
SAMSUNG CAME OUT WITH A BULLETIN ON THIS PROBLEM .THE LINES ARE BEHIND METAL OF THE FRAME AND IS BEING PINCHED BY THIS. REMOVE THE LINE AND ORDER NEW LINE . SO,IF YOU SEE LINES IN PICTURE AND OR SHUTDOWN THIS SHOULD BE THE PROBLEM IN THE LNT SETS.LARRYM
Found Problem with the HLP4663 Sets
This set has glue on the ballast 5 v line. This glue will stop the set from getting the 5 volts it needs from the dmd board to turn the ballast on. You must remove the glue from under the connector. Check and reseat all connectors from dmd board including the large lvds. This seems to be a common problem with the set. The glue pushes the connector back and does not allow good contact.
GEOMETRIC DISTORTION AND ADJUSTMENTS FOR NEW SAMSUNG ORCHID CHASSIS DLP
GEOMETRIC DISTORTION AND ADJUSTMENTS ON NEW ORCHID CHASSIS DLP MODELS AFFECTED: HLT5076SX, HLT5676SX & HLT6176SX BACKGROUND: The new HLTXX76-Series DLP is the ultra slim fit designed with the projection mirror on the top of the back cabinet. Due to this design, extra alignment points have been added to the outside of the back cabinet to adjust picture geometry. See attached Service Guide for all info. 76-Series Service Guide Customer complaints of Picture distortion / Geometric issues troubleshooting: Are objects of any weight placed on top of the TV? And, if so, they should be removed. If the picture does not return to normal then perform the Tilt Adjustment in the attached Service Guide. Is the unit on a flat and level surface? If not the cabinet will flex and conform to the environment it is placed in. The picture will bend and distort in this situation. Advise the customer that the entire bottom of the TV needs to be touching a flat level surface to ensure the best picture. If all else fails and you need to adjust the geometry of the TV. 1. To ensure proper adjustment the unit must be placed on a flat / level surface. The unit cannot be half hanging off a TV Stand or Entertainment Center. 2. Connect a generator to the unit and input a LIONHEAD pattern. 3. Enter Service Mode and apply the Test Pattern from the H/V Position Adjustment Item. 4. Make upper and lower screen adjustments per the attached Service Guide. It may be necessary to adjust H/V Position (Svc mode) to ensure proper picture centering. 5. Return the TV to its position in the house and retest picture. – You may have to flex the cabinet after repositioning to obtain best picture. 6. Inform the customer that after cleaning the unit, the cabinet may have to be flexed if they notice the picture distorted again. This is normal. 7. Inform the customer that heavy vibration (such as from an external speaker) could cause the screen / picture to shake. This is normal.
PROGRESSIVE SCAN VERSUS INTERLACED SCAN
I see some TVs are marked \\\'p\\\' or \\\'i\\\'. What does that mean? A \\\" i\\\" stands for interlaced scan, which means every other line of detail on the screen mirrors the one above it. Television screens have traditionally worked this way, which allows for detailed pictures to be drawn quickly, if a little fuzzily. A \\\"p\\\" stands for progressive scan, a newer technology that allows every line to be drawn separately. Thus, a 1080p set will have a clearer picture than a 1080i set. But it will also cost a lot more.
Know Your Connection!!!
The different categories of video connections are composite, component, s-video, dvi-i, hdmi, rgb, and composite video. Composite video (RCA connector) is the lowest grade of video signal used by most video equipment. It is a combined video signal that contains the luminance, hue, and saturation data on a single cable. The typical connector is a single RCA jack with a yellow marking. These jacks are used for most audio/video connections between components. The audio/video jacks are often color coded (yellow for video, red for right audio, and white for left audio). This is also called composite video. Analog Audio is one of the most common transmission formats. Audio analog is used to transfer stereo audio signals only. Hugely versatile, the audio analog interconnect can range from the most affordable entry level to the highest possible quality available, depending on the materials and geometry used in the cables construction. Digital Audio signals are complex and fragile. There are two ways of transmitting the signal. One is a 75-Ohm coaxial cable and the other is optical transmission. 75-Ohm cables are able to transmit digital signals by restricting the impedance to 75-Ohms using precise construction and materials. Optical cables work by transmitting light signals down medical grade light conductive cores. S-Video separates the luminance portion of a video image from the color part. This provides a clearer picture because each portion of the video signal is assigned its own processing channel. The S-Video connector is a Mini-Din 4 Y/C, also known as S-Video Connector. S-Video is primarily used on S-VHS VCRs, satellite dishes (non-HDTV) and DVDs where the target connection, such as your TV set, will not accept component connections. S-Video will run 480i signal, but not a 480p signal. Component Video (RCA connectors) is used primarily on DVD players and HDTV receivers. It is a high-grade video signal that separates the three basic components of a video signal (luminance, hue, saturation). Component video is often displayed as Y, Pb, Pr, or Y, Cb, Cr. The typical connectors are three RCA Jacks with Green, Blue, and Red markings. This system is a component video connection which is capable of accepting full high-definition signals up to 1080i. When you are about to buy a surround sound receiver, make sure it has component video switching. Try to keep your run below 18 feet when purchasing component video cables. . The Y, Pb, Pr jacks allow you to connect a component, such as a DVD player. This connection provides excellent picture quality because the video is separated into three signals. To ensure maximum picture quality, use three video-grade cables for the connection. They are RGB (VGA) Video. All video signals require synchronization of both the horizontal and vertical picture information. Combined synchronization, or “CS” as it is also known, provides both horizontal sync and vertical sync in a single conductor. By keeping the sync separate from the quality picture information provided by the Component Video format, accurate color and timing transfer is achieved. DVI Video (Digital Video Interface) is a specification created by the Digital Display Working Group (DDWG) to accommodate analog and digital monitors with a single connector. It is the highest signal quality available. There are three different DVI configurations: DVI-A, designed for analog signals, DVI-D, designed for digital signals, and DVI-I (integrated), and designed for both analog and digital signals. DVI is an option on many Plasma displays. Because DVI is a new standard, there are presently very few sources except for HDTV and some computers. A DVI connection can also be adapted to feed RGB (VGA) connections. Although, in theory the DVI is the best signal for video it cannot be switched through a surround sound receiver and can be controlled by HDCP. HDMI - (High Definition Multimedia Interface) is the first industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an interface between any audio/video source, such as a set-top box, DVD player, and A/V receiver, and an audio and/or video monitor, such as a digital television (DTV). HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel digital audio, with bandwidth to spare to accommodate future enhancements and requirements.
HOW TO FIX INTERMITTING DLP SHUTDOWN
TV turns off and 2 out of 3 LEDs are blinking (Standby and Lamp LED). Additionally, the turn off melody is heard. After a few moments the TV reverts to standby mode. The problem appears when the TV is warmed up. The Lamp door safety switch has been forced upward instead of downward. The upward orientation does not provide good conduction, causing intermittent connection. Slight heat expansion causes the lamp door to shift slightly, opening the switch. Remove the lamp door and reinstall it, verifying that the blue switch lever is being forced downward by the lamp door tab.
LAST FIRMWARE REVISION FOR SAMSUNG UNIT
Model: LNS**51D, LNS**52D No. Release Date F/W Version Fix 1 1-Feb-06 2000 First Release 2 3-May-06 2022 On Timer issue 3 27-Jul-06 2029 SA4200HD HDMI issue 4 10-Nov-06 4000 Add AUO Panel Option 5 2-Mar-07 4006 HDMI Image Retention Model: LNS**41D, LNS**92D, LNS3296D No. Release Date F/W Version Fix 1 1-Feb-06 1000 First Release 2 23-Feb-06 1010 DVI no sound 3 3-May-06 1021 On Timer issue 4 27-Jul-06 1028 SA4200HD HDMI Issue 5 10-Nov-06 3000 Add AUO Panel Option 6 3-Jan-07 3005 STB Remote Control Malfunction 7 2-Mar-07 4006 HDMI Image Retention Model: LNS**96D No. Release Date F/W Version Fix 1 6-Jul-06 1000 First Release 2 10-Aug-06 1006 ESPN Channel Problem 3 21-Aug-06 1008 HDMI Flicker at 720P/1080i with DirecTV STB H20-100 4 1-Sep-06 1012 DTV Picture broken 5 20-Nov-06 1016 Star noise at HDMI 1080i input 6 9-Jan-07 1019 Cable card fan off in standby mode 7 6-Feb-07 1022 Just Scan on HDMI 1080i/p input Model: LNS**95D No. Release Date F/W Version Fix 1 1-Jun-06 1000 First Release 2 8-Jul-06 1008 Hang up during Auto Channel Scan 3 10-Aug-06 1012 ESPN Channel Problem 4 22-Aug-06 1013 HDMI Flicker at 720P/1080i with DirecTV STB H20-100 5 1-Sep-06 1017 DTV Picture broken 6 9-Jan-07 1021 Vertical bar noise on Component 1080i 7 6-Feb-07 1024 Just Scan on HDMI 1080i/p input Samsung Tech
HLS AND HLT LIGHT ENGINES ARE LIMITED SUPPLY
Please be advised that effective May 10th, Samsung Electronics will no longer supply the light engine for any 2006 or 2007 DLP models. The light engine must be repaired to component level. In the event that a DLP unit can not be repaired at component level, the following process should be followed to request a light engine from Samsung. Please note that inventory on the light engine is very limited so stock may not be available. 1.)To receive approval to order a DLP light engine, you must first call the Samsung Technical Support Department. When calling, please have available the model number, serial number, version number, detailed symptom of the defect as well as any parts already installed into the defective unit. 2) Technical Support will review your case and approve or reject your request while you are on the phone. If approved, you will be notified of your DLP light engine approval number (#200xxxxxxx) from the Technical Support representative as well as via email.
SAMSUNG IS #1 IN NATION
It’s official. In 2006 more Americans purchased Samsung digital TVs than any other brand. Samsung sold more LCD TVs, more flat tube CRT TVs, and more digital TVs overall, according to the NPD Group, who went on to state: “Samsung is the only television manufacturer that demonstrates market strength in all four digital TV categories….” The NPD report shows Samsung with total Digital TV unit share of 20.0 percent, which is a significant lead on the competition.
SAMSUNG HLS AND HLN SHUTDOWN
The TV intermittently shuts down. The Stand-By and Lamp LED’s are blinking then after several seconds only the Stand-By LED is active. The turn off melody sound is heard during the shutdown process. DETAIL: Improper close position of door switch and thermal expansion of the Door Cover causes shutdown to occur. Remove and reattach the Door Cover to cure the problem. THE SWITCH SHOULD BE IN THE DOWN POSITION. WE PUT A PIECE OF VELCRO IN THE DOOR COVER AT THE INSIDE . WHERE THE SWITCH HITS THE DOOR COVER .IT WORKS GREAT.
Samsung Microwaves
Samsung 2006 and 2007 microwaves have shutdown problems after a minute or two of cooking. This is caused by the fan blade falling off of the motor shaft. Remove the case and use some glue in the blade hole (works great) and reapply. Also these microwaves have a problem with the rf leaking on the magnetron. You will see little dashes on the display when this problem occurs. The unit may shutdown from this problem. The rf is getting to the micro on the front panel. To prove this problem, remove the front panel screw and move the panel sideways to allow the unit to run without shutting down.